X(1835) as Proton-Antiproton Bound State in Skyrme Model

YAN Mu-Lin

Chinese Physics C> 2006, Vol. 30> Issue(11) : 1141-1150

X(1835) as Proton-Antiproton Bound State in Skyrme Model

YAN Mu-Lin ^,

Interdisciplinary Center for Theoretical Study, Department of Modern Physics,University of Science and Technology of China, Hefei 230026, China

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We present a review of the recent work related to interpreting the exotic particle X(1835) reported by BES as a NN-baryonium in the Skyrme model. There are two evidences that support this interpretation:1) There exists a classical NN-Skyrmion solution with about ～10MeV binding energy in the model; 2) The decay of this Skymion-baryonium is caused by annihilation of p-p inside X(1835) through the quantum tunneling effect, and hence the most favorable decay channels are X→η4π or X→η' 2π. These lead to reasonable interpreting the data of BES, and especially to useful prediction on the decay mode of X(1835) for the experiment.

References

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YAN Mu-Lin. X(1835) as Proton-Antiproton Bound State in Skyrme Model[J]. Chinese Physics C, 2006, 30(11): 1141-1150.

YAN Mu-Lin. X(1835) as Proton-Antiproton Bound State in Skyrme Model[J]. Chinese Physics C, 2006, 30(11): 1141-1150. shu

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Received: 2006-03-02
Revised: 2006-05-27

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

X(1835) as Proton-Antiproton Bound State in Skyrme Model

Corresponding author: YAN Mu-Lin,

Interdisciplinary Center for Theoretical Study, Department of Modern Physics,University of Science and Technology of China, Hefei 230026, China

Received Date: 2006-03-02

Accepted Date: 2006-05-27

Available Online: 2006-11-05

Abstract: We present a review of the recent work related to interpreting the exotic particle X(1835) reported by BES as a NN-baryonium in the Skyrme model. There are two evidences that support this interpretation:1) There exists a classical NN-Skyrmion solution with about ～10MeV binding energy in the model; 2) The decay of this Skymion-baryonium is caused by annihilation of p-p inside X(1835) through the quantum tunneling effect, and hence the most favorable decay channels are X→η4π or X→η' 2π. These lead to reasonable interpreting the data of BES, and especially to useful prediction on the decay mode of X(1835) for the experiment.

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X(1835) as Proton-Antiproton Bound State in Skyrme Model

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